申请人:——
公开号:US20020045790A1
公开(公告)日:2002-04-18
The invention is a method and catalyst for selectively and efficiently producing short chain linear &agr;-olefins. The method includes contacting olefinic monomers under oligomerization conditions with the catalyst composition which comprises a composition prepared in situ by reacting a nickel compound selected from the group consisting of halides, hydrides, triflates, acetates, borates, C
1
, through C
12
alkyl, C
1
through C
12
alkoxy, C
3
through C
12
cycloalkyl, C
3
through C
12
cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins including diolefins and cycloolefins, and any other moiety into which a monomer can insert and mixtures thereof, with an amine ligand wherein said ligand is a nitrogen-containing ligand having one or more nitrogen atoms. The method also includes contacting olefinic monomers under oligomerization conditions with the catalyst composition wherein said catalyst has the formula LNi(X′)(X)
n
, wherein n equals 0 or 1; X and X′ are independently selected from the group consisting of halides, hydride, triflate, acetates, borates, C
1
through C
12
alkyl, C
1
through C
12
alkoxy, C
3
through C
12
cycloalkyl, C
3
through C
12
cycloalkoxy, aryl, thiolates, carbon monoxide, cyanate, olefins, and any other moiety into which a monomer can insert; M is selected from the group consisting of nickel, palladium, and platinum and L is a nitrogen-containing bidentate ligand with more than two nitrogen atoms.
本发明是一种选择性高效生产短链线性烯烃的方法和催化剂。该方法包括在低聚条件下使烯烃单体与催化剂组合物接触,催化剂组合物包括通过使选自由卤化物、氢化物、三酸盐、醋酸盐、硼酸盐、C.
1
至 C
12
烷基、C
1
至 C
12
烷氧基,C
3
至 C
12
环烷基、C
3
至 C
12
环烷氧基、芳基、硫醇酯、一氧化碳、氰酸酯、包括二烯烃和环烯烃在内的烯烃,以及单体可插入的任何其他分子及其混合物,其中所述配体为具有一个或多个氮原子的含氮配体。该方法还包括将低聚条件下的烯烃单体与催化剂组合物接触,其中所述催化剂具有式 LNi(X′)(X)
n
其中 n 等于 0 或 1;X 和 X′ 分别独立地选自卤化物、氢化物、三酸盐、醋酸盐、硼酸盐、 C
1
至 C
12
烷基、C
1
至 C
12
烷氧基,C
3
至 C
12
环烷基、C
3
至 C
12
环烷氧基、芳基、硫醇酯、一氧化碳、氰酸酯、烯烃以及单体可插入的任何其他分子;M 选自镍、钯和铂组成的组,L 是具有两个以上氮原子的含氮双齿配体。